Just stumbled across this thread, mine started doing the exact same thing a few months back when it was extremely cold here in Ohio. Took it to a dealership and they claimed they couldn't hear the sound. When I'm sitting in the car, the sound appears to come from the front passenger side of the vehicle but when you are outside the car and listening in the engine bay you can't hear it at all. I've got Berk HFC's and HKS catback on mine. Please post back if you figure it out and I will do the same. Thanks!
|